GLCLOCAL Pollution levels at four water treatment plants drop — Air SelangorEditor Selangor JournalNovember 11, 2020November 11, 2020 by Editor Selangor JournalNovember 11, 2020November 11, 2020 KUALA LUMPUR, Nov 11 — The level of odour pollution at the Muka Sauk Water Treatment Plant (LRA), Rantau Panjang has dropped to 4 TON...